University Corporation for Atmospheric Research

Subseasonal forecast improvements from sea ice concentration data assimilation in the Antarctic

Abstract. This study evaluates the impact of sea ice concentration (SIC) data assimilation (DA) on subseasonal forecasts of Antarctic sea ice by comparing reforecast experiment suites initialized from two sets of initial conditions (ICs): one with SIC DA and the other without. Th...

The chromosomal genome sequence of the blushing star coral, Stephanocoenia intersepta (Lamarck, 1816) (Scleractinia: Astrocoeniidae) and its associated microbial metagenome sequences

We present a genome assembly from a specimen of Stephanocoenia intersepta (blushing star coral; Cnidaria; Anthozoa; Scleractinia; Astrocoeniidae). The assembly contains two haplotypes with total lengths of 656.21 megabases and 656.55 megabases. Most of haplotype 1 (94.84%) is sca...

Leveraging JEDI for atmospheric composition: a unified framework for evaluating observations and model forecasts

Accurate evaluation of both observations and forecasts is essential for advancing atmospheric composition research and improving operational prediction. Traditionally, this has relied on separate workflows with product-specific preprocessing, often limiting reproducibility and cr...

Impact of high-volume GNSS Radio Occultation data on the Navy's global numerical weather prediction

Abstract. This study assesses the impact of assimilating high-volume Radio Occultation (RO) data from the RO modeling experiment (ROMEX) on the Navy's global operational Naval Global Environment Model (NAVGEM). A series of observation system experiments were conducted, including...

Detectability of Forced ENSO Changes Under Global Warming: Insights From the Recharge Oscillator

Abstract We use perfect‐model, large‐ensemble nonlinear Recharge Oscillator (RO) simulations to quantify ENSO internal variability and the detectability of forced changes in ENSO characteristics. Fixed‐parameter simulations show that linear trends in ENSO standard deviation, peri...

Impact of ROMEX Radio Occultation bending angle assimilation on mesoscale weather prediction over the Indian Region

Abstract. Data assimilation experiments were conducted for September 2022 at 9-km horizontal resolution using a cyclic three-dimensional variational (3D-Var) assimilation system to assess the impact of a large number of Global Navigation Satellite System (GNSS) radio occultation...

The chromosomal genome sequence of the spiny sea fan, Muricea muricata (Pallas, 1766) (Malacalcyonacea: Plexauridae) and its associated microbial metagenome sequences

<ns5:p> We present a genome assembly from a <ns5:italic>Muricea muricata</ns5:italic> specimen (spiny sea fan; Cnidaria; Anthozoa; Malacalcyonacea; Plexauridae). The genome sequence has a total length of 453.40 megabases. Most of the assembly (98.45%) is scaffolded into 16 chromo...